Shot-firing device.



E. PORPHR.

SHOT FIRING EVICE.

APPLICATION FILED SEPT. I3. I9I7.

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E. PORPHIR.

SHOT FIHING DEVICE.

APPLICATION FILED SEPT. I3, Isn.

Patented Jan. 1,1918.

2 SHEETS-SHEET 2 r -Bet a known `that I,

l will be highlyeflicientand durable.`

` ifplanef thelline` "thereof, l

UNITED STATES PATEN T OFFICE.

i infima Eenrum, `onPrrtrsisuncr, KANSAS.

`Toazllwkom v5/may concern.- Y i :t 1w

ELMER- Pomme, a 1 citizen of the United States, residing at PittsburgState offansas, haveinvented certain new i `and useful Improvements inShouFiring` .y Devices and `I dodeclare the following to i* l be a full,clear, and exact description `of the invention, such as willenableothers skilled inthe art to which itappertains to `make and 'i``usethesame. l W f My invention'relates to improvements inY devicesintended primarily for successively v i l y firing a number of `chargesof blasting pow-V der or the like in mines, one object oftheA 1invention being tofprovideffa device of this wmanufactured and marketed,yet oneV which A further objectwis -to provide a device l which willsound a signal such asa bell before' f or simultaneously with ring ofthe l ifirstcharge, and either simultaneously with ,orgimmediatelyrafter iiring of ,the last `charge, thus signifying to the operator at*the mouth of the mine whenthe blasting 1period starts-and is completed.y 1 i 1A furtherobject is to provide means for normally holding the"circuit closing means of the charges against movement, andelecl tricmeans for releasing Vthe Vholding means of said circuit closing means,-the clrcuit lof t said electric means being `normally completed @by saidcircuit closin `means with the ex` ception of a switch,"w erebyclosingof this `switch will start the entire device. l

With the `foregoing general objects in -viewl, theinvention resides inthe novel fea- :tures of construction, and unique combinafjtions ofparts toV be hereinafter fully described and claimed, the descriptivematwterfbeing supplemented.. by the accompanyying drawings :which `forma part of this .1. specification andin which :j 1

Figure 1 is fa `top plan view of the" `proved device;

iFigQis a Vvertical section of the liquid .'Fcontaining chamber, theioat therein `and associated parts; 50

f circuit closing weight, the inclined guideway for said weight, and thecontacts along Fig. 4 is a vertical section of Fig. 31 on the inthecounty lof Crawford and preferably having lguideway 2 isja l `F ig. I3isanenlarged side elevatiompartly f in section, showing moreparticularly the u snor-rimiis DEVICE.

specineationaimeraient.1 i Patented Jan.1,191s. Application ledSeptember13', 1917. SeralNo`.191,219. i i

1 f Fig. 5 is a detail horizontal section of Fig.

,3 'oni` the plane and, l Fig.

indicated by the `line 5?-5;

6 is a diagram showin the wiring ,vices` i l I. In the drawings abovebrleiiy described,

#thenumeral l designates a Weight formed of `metal and of any suitablesize and shape, although itwill by preference be in the form 1 `of adisk as illustrated clearly in Figs. 3 and `5. A vertical guideway 2formed of wood or any other preferred insulating material, is providedfor the weight 1, said guideway an open side 3. The

lshown in the 'drawings and said guideway Inlay be supported in anypreferred manner, but for illustrative purposes it is shown se-` 'curedto one side -of-.a liquid container 4. t A series of vertically spacedcontacts are provided along the lower side of the guidebolts, whereasthe contact plate 5 is provided with a binding post 6 asshown mostclearlyin Fig. 3.

VA cable or thel like 7 is secured to the weight 1 and is trained over apulley 8 at the upper end of the guideway 2, said cable also extendingover an additional pulley 9` on a cross bar 10 of thereceptacle 4, andthen being secured to a ioat 11 which is positioned in said receptacle,the weight of said float being greater than that of the Weight 1.

A body of water or any other preferred liqn uid 12 is normally confined1in the receptacle 4, soethat the float 11 is maintained at the upperend of said receptacle, the weight 1 being then inV contactwith theplate as shown clearly in Figs. 2, 3 and 6. The receptacle is provided,however, with an outand thegeneral operation of tie entire deapted to beinclined as` `way-2, said series-including aiplurality of letopeninglthrough which the liquid may v -drain from said-"receptacle2whenrequired,

thuspermitting the ioat to lower sorthat it pullsupon the-cable 7 4andthus raises the "weight` 1 into successive contact with the bolts.

Any suitable means-such a plug 14 may be employed for normally closingthe outlet 13 ,1saidplug being carried on the lower end A of @aan'fori'p15"which'iiisswninn nef met iii-1e Seriesof'guitsQntnmiii again"receptacle 4 and is oonnectedvatuits upper. l y n end'toa lever 16which isf'ulcrumedon-thethen-latter,- thus indicating tothe operatorlever 16 with solenoid 18 o rother pr ferredl type of electricaloperatingrmeansf for' complete the circuit of the bellSO,` to sound vbar110.l A linkorfthe like 17 oonnectstl/leV `that-.theseries'offeXplo-sions' are over andVV "that it is then `safe to Work:inv the mina' proceed further with 1 "said levenfwhereby energizing'oftliisf'Infe'ansfy '-"F'oinf the foregoing, taken -inbonneotion i i 'Qwill so operate e thevlleverV as.to remove the plug 14 from the opening13, vso; that the i` l Any-'suitable atch'fsu'oh as that indicated "atliquid'gmay. dranf-fronnthe erec'eptale Vv4.

Y, Withjthef accompanying drawingafitfwill be obvious that although myinvention is of extremely simple and@inexpensiveiQOIlStruc 19 vin thedrawings, may beV `pr`ovidedffo1gparticular emphasislbeing laiduponthe-fact 1 ;holdingv 'tliezilever 16 inoperative-position,

,Y that is7V .in the; positionin Whiohpitisf retain'- 1-5V A, l.Wire v;20'; leads 1 from L the@A bindi'n'gg-post Y 6' of thecqntact vplate5,tofthe oilofg'tlie lz'solenoidfLlS, whereas another Wire 5121eX-tendsfroi'nfi)this coil to` a Single; tlirowvfgswitch V20` '22,one poleof said switch Ibeingoonneted i that; thei..EWei 3'3lnts1- y E1. ,andl:plate 5f@ `snQ-rma-lly v. gc'ompletefthe ,orouitlof the :solenoid 18;-W- ith 3 the-exception ofitheswitehf,'it,being there- A i f: foreyonlyneoessarfy to Vclose l :this Witch@ to .igstithefientire :devicein,-operation. I also I attach igratfzimportance lt0;5-tl1e 'prolvisiongof"F'thei-Sgnal llandgthe meansffoit sounding' it v 'ing the plug'14raisediabove the opening-,13.

f f with a battery V0r 4.the :likeV l 23, Vby i a Wire 24. .Vi,Anadditional Wire-leads -fromthe battery .f 23 to, =the Weightggl-andfiS-eleetrically ooninectedY-With thelatter. :Itwillthusfbeelear';tained'vfrmithe Speoiodetailsof 'construc-V 'at .thebeginningv and endingvoflitheaes f 0f IeXplosions, i and to 1 the;generalk 1 CQliStrctiOn 'ethat :.fWith thev Weight gin a question,-normally contacting Withthe platef the cireuit vofthe solenoid :18;'will be completed Withvgthe exj sception'; of thefswi'tch. 22iwhicliqnormallyg :ret mains fopen, but; theinoment @this kswirtchi isclosedfthe solenoidwijllyactfto opentlie, plug. 14 'so Y ;that fthe;liquid may :start vffdiaining i 'Y iromfthe receptacle,V .4.r'ofliiskhaving; been'-f' doneftheivloat 11 =Willudeseendso:"VhttvftlieA rWeight 1 risesWithinxthefguidevilayf 2 -or-if;fsuccessive,ooiitactwithihelboltsff Y Y. x NVires Qllead fromythe'bolts5to apluralityjo blasting v squibs 27;,1 Whereas other :Wires/28 extendfrom,saidsquibsfto-a,Wire -29, V.the vlatter beingjeleotrically iconnected Awith' the Wire 24. By lthis arrangement,- as

, Y the Weight 1 rises Withinthe'guideviay-it fpfjsfWillisuccessively.completeltheeirouit of the Y #several squibsy 27, isothat :they: will lbe A firedy v one attime. i'lghese squibs will'offooursebe v yfre'maind'er `ofthe apparatuslwill bev disposed-`{engagement-:With said mintaets. ;.;at .remotepoinuf andin order; ftQindicate to the-operatoriexaetlygwhen'the v explosions Vstart i and;stop, the following arrangement ,isprovided. f Y v A vbell Y orOhLGr-g-'S'uitable signal 330? isI Ycon- 'f ncted byani'rel vwithitheilowermostiof thepwires.andganfaddtional-Wire @pleads a-frangement;theiiengagemfent othewveight 1 Y :simultaneously .eomplete the' circuityQfiitllfe i ,first Squb 27 and. the bell 3.05- s0 rthatf. as; the

i first? charge .is fired, Ethel-bell- :itfilflfring;- An- I .WhentheWeight 1 Comes in contact1-`Wi-th;the v i. f, uppermost bolt 5, it Willmot only Y fire V the i' 1 ftonishnwn; an

v ddesoribednslioli detalsjoonstl'tutegthef pref redgiformffzzthe dieve,but i Wish :it `ulidrstood-thatwithinYthegscopefof i a. Jmetal Weigh@.#an :.inoli'ned guidef- -WayrorY said- I:fw-eight, fpluralty ofgxed'contacts spaeedaalongthie lo'Werside-Qf said locatedgin aj mine for vthelike,vv @Whereas the YWeight @Within ,saidguideway i for-.Suboessive A.fdeyicef offithe y'classdescribedjoomprisi-ng ailxnatal'f-Weightgeaninclined gu-ide- 'gu i'devvay- `for engagement,successively byvsaidgweiglit, said.: ContaQtsfhagingmeansfor. the attahmnt 0.1i urre'ntfcodutngi wires,

said'g'uideway; Y 7'., ,l v f E f t@stimoli-y' tWhereofi-Lhavenhereuitoset imyahandzinithe preseneeof.-twoefsulosoribing Witi'nesses.` A i ftheinYeXltiQllLaS-claimedyinumerousrrminor said moving i gmeansi; against:operi-"ation,

A'.device.Qfgftlieiclassdescribedoom- I- :and mea-ns. for mowing: said;wyeight Within y

